Campylobacterota

Campylobacterota
Campylobacter
Scientific classification
Domain: Bacteria
Phylum: Campylobacterota
Waite et al. 2021
Classes
Synonyms
  • "Campylobacterota" Waite et al. 2018
  • "Epsilonbacteraeota" (sic) Waite et al. 2017
  • Epsilobacteria Cavalier-Smith 2002

Campylobacterota are a phylum of bacteria. All species of this phylum are Gram-negative.

The Campylobacterota consist of few known genera, mainly the curved to spirilloid Wolinella spp., Helicobacter spp., and Campylobacter spp. Most of the known species inhabit the digestive tracts of animals and serve as symbionts (Wolinella spp. in cattle) or pathogens (Helicobacter spp. in the stomach, Campylobacter spp. in the duodenum). Many Campylobacterota are motile with flagella.

Numerous environmental sequences and isolates of Campylobacterota have also been recovered from hydrothermal vents and cold seep habitats. Examples of isolates include Sulfurimonas autotrophica, Sulfurimonas paralvinellae, Sulfurovum lithotrophicum and Nautilia profundicola. A member of the phylum Campylobacterota occurs as an endosymbiont in the large gills of the deepwater sea snail Alviniconcha hessleri.

The Campylobacterota found at deep-sea hydrothermal vents characteristically exhibit chemolithotrophy, meeting their energy needs by oxidizing reduced sulfur, formate, or hydrogen coupled to the reduction of nitrate or oxygen. Autotrophic Campylobacterota use the reverse Krebs cycle to fix carbon dioxide into biomass, a pathway originally thought to be of little environmental significance. The oxygen sensitivity of this pathway is consistent with their microaerophilic or anaerobic niche in these environments, and their likely evolution in the Mesoproterozoic oceans, which are thought to have been sulfidic with low levels of oxygen available from cyanobacterial photosynthesis.

Phylogeny

16S rRNA based LTP_06_2022 120 single copy marker proteins based GTDB 08-RS214
Desulfurellia
Desulfurellales
Desulfurellaceae

Hippea

Desulfurella

Nautiliia
Nautiliales
Nautiliaceae

Thioreductor

Caminibacter

Cetia

Lebetimonas

Nautilia

Campylobacteria
Nitratiruptoraceae

Nitratiruptor

Campylobacterales
Hydrogenimonadaceae

Hydrogenimonas

Helicobacteraceae

Wolinella

Helicobacter

Sulfurovaceae

Nitratifractor

Sulfurovum

Sulfurimonadaceae

Sulfuricurvum

Sulfurimonas

Arcobacteraceae

Arcobacter

Sulfurospirillaceae

Sulfurospirillum

Sulfurospirillum alkalitolerans

Campylobacteraceae

Campylobacter

Desulfurellia
Desulfurellales
Desulfurellaceae

Hippea

Desulfurella

Campylobacteria
Nautiliales
Nautiliaceae

Nautilia

Lebetimonas

Cetia

Caminibacter

Campylobacterales
Helicobacteraceae

"Pseudohelicobacter"

Wolinella

Helicobacter

Arcobacteraceae

"Marinarcus"

Arcobacter

Malaciobacter

Halarcobacter

Malaciobacter pacificus

Poseidonibacter

Aliarcobacter

Sulfurospirillaceae

Sulfurospirillum

Campylobacteraceae

Campylobacter

Thiovulaceae

Thiovulum

Sulfurimonadaceae

Sulfuricurvum

Sulfurimonas

Nitratiruptoraceae

Nitrosophilus

Nitrosophilus labii

Nitratiruptor

Hydrogenimonadaceae

Hydrogenimonas

Sulfurovaceae

Nitratifractor

Sulfurovum

See also


This page was last updated at 2023-12-10 22:38 UTC. Update now. View original page.

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